Volume 10, Issue 27 (11-2018)
jcb 2018, 10(27): 125-134 |
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Soltani Howyzeh M, Moradi M, saki nezhad T, Zaker nezhad S, Etaa A. (2018). Evaluation of the Relationships among Yield and Related Traits in Spring Canola Cultivars using Path Analysis. jcb. 10(27), 125-134. doi:10.29252/jcb.10.27.125
URL: http://jcb.sanru.ac.ir/article-1-660-en.html
URL: http://jcb.sanru.ac.ir/article-1-660-en.html
Islamic Azad University
Abstract: (3039 Views)
Performance of any breeding program is mainly due to the correlation among yield and relative importance of each component. This study was conducted to analysis the correlation among grain yield and some important traits in seventhin spring canola (Brassica napus L.) cultivars at the farm in safiabad, from 2014 to 2015. A randomized complete blocks design with four replications was used. The analysis of variance results indicated highly significant differences in canola genotypes for all studied traits, that it can indicate genetically variation be utilized for the effective selection for improving grain yield. Mean comparision showed that RGS003 and Hayola401 cultivars had higher grain yield than the other cultivars. The correlation coefficients among the grain yield and 1000-seed weight, number of seed per pod, HI and days to maturity were positive and significant. Results of stepwise regression analysis revealed that 1000-grain weight, number of pods per plant and days to maturity had significantly effects on grain yield. Path coefficient analysis revealed that the number of seed per pod and 1000-seed weight had the largest direct effects on grain yield, its seams possible to be use as selection criteria in breeding programs for improving grain yield of spring rapeseed cultivars.
Type of Study: Research |
Subject:
اصلاح نباتات، بیومتری
Received: 2016/11/12 | Revised: 2018/12/8 | Accepted: 2017/07/1 | Published: 2018/12/8
Received: 2016/11/12 | Revised: 2018/12/8 | Accepted: 2017/07/1 | Published: 2018/12/8
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